Choosen As Best Answer
For your reference
No, it’s determination of rational root
Determination of rational root? Is that“根與係數”？
Aren’t you from Taiwan?Why you’re using English?
No, I just tried to reply in English to increase my English writing ability.
Determination of rational root? Is that“根與係數”？you know it's a rule in the handbook and tell us to try or try again.
I see.Thanks for you help.I think you English writing ability is very good.
Wow,you do a nice thing a day.